And david heston



{N0 Mddel.) 2 Sheets-Sheet 1, I. ROBBINS & D. HESTON.

I MACHINE FOR GROUNDING WALL PAPER. No. 250,579. Patented Dec. 6,1881.

Fay- Z.

WW ATTORNEYS (No Model.) Q 2 ,Sheets-Sheet-2.

I. ROBBINS & Di HESTON.

MACHINE FOR GROUNDING WALL PAPER. No. 250,579. Patented Dec. 6,1881.

WITNESSES 4 I211 VBNTOR ATTORNEYS.

N. PETERS. Phnlol-xihogmphen Wnshingion. n. C.

. verse bar B, and provided at its upper end vertical longitudinal section.

UNrrn STATES FFICEO ATENT I IRA ROBBINS, OF CAMDEN, NEW JERSEY, AND DAVID HESTON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNORS TO SAID HESTON.

MACHINE FOR GROUNDING WALL-PAPER.

SPECIFICATION forming part of Letters Patent No. 250,579, dated December 6, 1881.

, Application filed March 21, 1881. (No model.)

To all whom it may concern:

Be it known thatwe, IRA RoBBiNs, of Gamden, Camden county, New Jersey, and DAVID HESTON, of Philadelphia, Philadelphia county, Pennsylvania, haveinvented a new and Improved Machine for Grounding Wall-Paper; and we do hereby declare that the following is a full, clear, and exact description of the same, reference beinghad to the accompanying drawings, forming part of this specification, in which- Figure l is a plan view of our improved machine for grounding wall-paper. Fig. 2 is a Fig. 3 is an elevation of one side of the machine, and Fig. 4 is an elevation of the opposite side of the machine.

Our invention relates to improvements in machines for grounding wall -paper before printing; and it consistsgfirst, of devices by means of which the pressure ofthe impressionroll on the paper in contact with the grounding-roll may be increased or diminished, as desired.

Our invention further consists of certain details of construction, hereinafter more fully described, and set forth in the claims. I

In the accompanying drawings, A represents the bed or floor to which our improved machine for grounding wall-paper is secured.

B represents a transverse bar provided with standards 0, having at their upper ends bearings for supporting the horizontal shaft D of the roll of wall-paper, P, to be grounded. The transverse bar B is provided with slots 0, for the passage of screws I), passing through said slots, and thence into the floor A.

E is a plate secured to one end of the transwith a screw-hole for the passage of a setscrew, F, passing through a screw-hole in the upright G, bolted to the floor. -By this construction it will be seen that by turning the setscrew F the roll of wall-paper to be grounded can be adjusted back and forth laterally, as desired, so that the wall-paper will be directly opposite the opening between the sides of the machine.

G G represent the sides of the frame of the machine, secured at their bases to the floorA,

and provided each at their circular upper ends with a series of radial slots, which serve as bearings for a series of distributing-rolls arranged in pairs in said slots, and journaled therein, the lower series of said rolls bearing on the periphery of the grounding-cylinder H, having its axle-bearings in the sides G.

I is an angular frame having jonrnaled at one end the impression-roll J, and having at its opposite end a cross-bar, K. The angular frame I isjournaled in the sides G on the rockshaft L, and is capable of being moved against or away from the grounding-cylinder.

M is a rock-shaft journaled in the sides G, and has a lever, N, secured to the middle thereof, one end of which projects under the crossbar K, the opposite end of said lever projecting rearward. It is obvious from this construction that a weight or pressure being applied to the lever N will force the impressionroll against the wall-paper in contact with the groundin g-cylinder, and that said pressure may be varied, as desired, by the weight applied to the end of the lever N. The wall-paper to be grounded passes from the roll P over the top of roll 0, thence under and partly around the under portion of the grounding-cylinder H, and thence to the take-up cylinder Q, operated preferably by frictional gear, to prevent tearing the paper should any undue strain be brought thereon.

To facilitate the introduction of the wall-paper around the lower portion of the groundingcylinder H, the angular frame I, carrying the impression-roll, is so constructed and weighted that in its normal position it will be suspended from its pivots in the sides of the machine, so that the impression-roll will be removed somewhat from the grounding-cylinder, so that the paper can readily be introduced between the grounding-cylinder and impression-roller.

The roll 0 is journaled in the lower set of opposite radial slots in the sides GGr of the machine, and lies opposite the roll of wall-paper, P, to be grounded, and the roll 0 is arranged so as to direct and guide the paper from the roll P to the surface of the groundingcylinder, the paper lying between the grounding-cylinder and the impression-roll.

K is a cog-gear keyed to the shaft of the grounding-cylinder H, to which motion is imparted by suitable mechanism. The inner face of the cog-gear K is provided with three or more projecting pins, R, which, in the revolution of the coggear, bear upon the cam end as of the lever S, pivoted in one of the sides of the frame, and bears down the outer end of said lever and raises its opposite end, which forces a pawl, T, into the ratchet-wheel U on the end of the color-roll V, thus giving the latter an intermittent motion in the color-receptacle \V. The pawl T will fall by gravity out of gear with the gear-wheel U, when the pin R has passed the cam 00. The lever S is pivoted to one side, G, of the frame by a rod, 1), to which the frame 0, carrying the transferroll 0, is journaled, so that in theinterinittent motion of the color-roll V the color will be transmitted from the color-roll V by means of the transfer-roll c to a distributing-roll, d.

0 is a box or recessed frame having four or more small rolls arranged in its recess in the arc of a circle, and bearing upon a distributing-roll, d, to which color has been transmitted, as described, from the transfer-roll. A rod,f, passes through holes in the sides of the machine and corresponding holes in the box 6, and thence passes through or is secured to a lever, g, pivoted on the end of an arm, h, secured to one side, G, of the machine, the opposite end of the lever is made angular and slotted, and fits over a cam-cylinder, h, on the end of the axle of the grounding-Wheel, whereby a reciprocating motion is imparted to the box or frame carrying the small rolls described, and the color is distributed more equally over said rolls and the grounding-cylinder.

WVhat we claim as our invention is- 1. The angular weighted frame Ljournaled in the sides G, and carrying the impressionroll J, and cross-bar K, in combination with the grounding-cylinder H, rock-shaft M, and weighted lever N, substantially as described, and for the purpose set forth.

2. The combination, with the roll P, angular frame I, carrying the impression-roller J, rock-shaft M, weighted lever N, and grounding-cylinder H, of the roll 0, arranged to directthe paper onto the surface of the grounding-cylinder, as set forth, and take-up roll Q, substantially as described.

- IRA ROBBINS.

DAVID HESTON. Witnesses:

J. P. WEATHERBY, SAMUEL THoMAs. 

